<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta charset="utf-8"> 
<title>(app.com)</title> 
<style>
* {
    box-sizing: border-box;
}
video {
    width: 100%;
    height: auto;
}
.row:after {
    content: "";
    clear: both;
    display: block;
}
[class*="col-"] {
    float: left;
    padding: 15px;
}
html {
    font-family: "Lucida Sans", sans-serif;
}
.header {
    background-color: #cc3387;
    color: #ffffff;
    padding: 15px;
}
.menu ul {
    list-style-type: none;
    margin: 0;
    padding: 0;
}
.menu li {
    padding: 8px;
    margin-bottom: 7px;
    background-color :#e5339b;
    color: #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0), 0 1px 2px rgba(0,0,0,0.24);
}
.menu li:hover {
    background-color: #cc0063;
}
.aside {
    background-color: #e5338f;
    padding: 15px;
    color: #ffffff;
    text-align: center;
    font-size: 14px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.007), 0 1px 2px rgba(0,0,0,0.24);
}
.footer {
    background-color: #cc0069;
    color: #ffffff;
    text-align: center;
    font-size: 12px;
    padding: 15px;
}
/* For desktop: */
.col-1 {width: 8.33%;}
.col-2 {width: 16.66%;}
.col-3 {width: 25%;}
.col-4 {width: 33.33%;}
.col-5 {width: 41.66%;}
.col-6 {width: 50%;}
.col-7 {width: 58.33%;}
.col-8 {width: 66.66%;}
.col-9 {width: 75%;}
.col-10 {width: 83.33%;}
.col-11 {width: 91.66%;}
.col-12 {width: 100%;}

@media only screen and (max-width: 768px) {

    [class*="col-"] {
        width: 100%;
    }
}
</style>
</head>
<body>

<div class="header">
<h1>菜单目录</h1>
</div>

<div class="row">

<div class="col-3 menu">
<ul>
<li>主页</li>
<li>详情</li>
<li>登录</li>
<li>退出</li>
</ul>
</div>
<div class="col-6 col-s-9">
<h1>视频播放</h1>
<video width="400" controls>
  <source src="mov_bbb.mp4" type="video/mp4">
  <source src="mov_bbb.ogg" type="video/ogg">
</video>
</div>

<div class="col-6">
<h1>方案企划</h1>
<p>关于方案内容的企划</p>
</div>
<div class="col-3 right">
<div class="aside">
<h2>方案专项</h2>
<p>第一步该做什么</p>
<h2>方案实施</h2>
<p>第二步该做什么</p>
<h2>方案结果</h2>
<p>第三步该做什么</p>
</div>
</div>

</div>

<div class="footer">
<p>备注条约</p>
</div>

</body>
</html>